Guide for feeders for plan ing-m achines



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Patented June 7, 1887.

:Humll' A. RAMSTAD. GUI-DE FOR FEBDERS FOR-PLANING MACHINES. 10,364,542

IIIII"v univ-""- mw"III 0 \1|\" (No Model.)

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UNITED STATES PATENT OFFICEo ANDREV RAMST'AD, OF MERIDTAN, VISCONSIN.

euses FORFEEDERS FOR PLANING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 364,542, dated June 7, 188:7.

Application tiled February 14, 1887. Serial No. 227,504. (No model.)

To all whom, it may concern.-

Be it known that I, ANDREW RAMsTAn, of Meridian, inthe county of Dunn and State of VVlsconsin, have invented certain new and useful Improvements in Guides for Feeders for Planning-Machines; and I do hereby Adeclare that the following is a full, clear, and exact dei scription of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figurelisaplan View of my improved guide for feeders for planingmachines. Fig. 2 is a side view of the same.l Fig. 3 is a transverse sectional view taken on line x.. x of Fig. l; and Fig. 4 is a vertical sectional view taken on line Y Y in Fig. 1, showing the mode of adj ustment of the spring pressure-bar.

Like letters denote the same parts in all the gures.

My invention has relation to guides for feed- -ers for planing-machines; and it consists in the improved construction and combination of parts of the same, as will be hereinafter more fully described and'claimed.

In the accompanying drawings, theletterA denotes a frame constructed of any suitable material, having uprights B B at its forward end, provided, respectively, at their lower and upper portions with an aperture, C, and slot D, and having in their upper edges screwthreaded apertures E E. D DD denote the curved cross-bars on the top of the frame, the two rear ones of which are provided with rectangular apertures F F. The axis of afeed-in roller, G, is journaled inthe apertures C C in the uprights, and oneend is provided with a cog-wheel, H, having a fixed band-pulley, I, attached thereto. The slots in the upper ends of t-he nprights are adapted to receive journalblocks J J, which receive the axis of a corn- M'M, which admitof the vertical play of the journalblocks.v Metallic plates N N are screwed to the upper ends of the uprights to prevent the journal-blocks from working out of the slots.

pin P on the side of thespring pressure-bar P, so as to admit of a lateral movement of the said spring pressure-bar, which is provided at its free bifurcated end with a frictional roller, S.

T denotes a lever or handle, pivoted at its lower end to the bracketU in the rear end of the frame, having a connecting rodor pitman,l

Y, secured with its rear end to the intermediate portion of the lever, and with its forward end to the vcam W, pivoted adj ustably by means of a nutted bolt, C', to the forward rectangular` perforated cross-piece in the same manner as the spring pressure-bar, and is adapted to be adj usted in thesame plane as the pressure-bar. A plate, X, is secured to the bolt C beneath the said cam, and has projecting upward there-v from a pin, Y, having a spring, B', secured thereto, the free end of which bears against the cam. A stud, A', projects upwardly from the rear portion of the plate and serves as a stop for the cam. The plates X and Q are rigidly secured to their respective bolts, and are secured adj ustably to the rear cross-pieces, D D',

by means of nuts X and Q?, clamping the said plates tightly against the-said crosspieces.

The operation of my invention is as follows: When it is desiredto plane a board or plank, it is first placed upon the frame between the guide-bar and the spring pressure-bar with its end between the feedin rollers GK. The

leveris then pulled backward, and the cam is then forced back through the medium of the connecting-rod or pitman against thestud locatedon the plate which supports the said cam and bears against the intermediate face of the spring pressurebar at right angles thereto, thus causing the said pressure-bar to curve slightly and forcethe friction-roller more firmly against t-he edge of the board or plank. While IOO the machine is in this position, the feed-rollers are made to rotate, thus feeding the plank or board straightly and irml y to the planing-machine. As soon as the plank or board passes the friction-roller inthe end of the pressurebar the strain upon the same is released and it suddenly springs to one side, and at the same instant the cam which has heretofore been at right angles to the spring pressure'har is thrown suddenly forward by means of the spring B', and the spring R- causes the said p ressure-bar to be thrown slightly to the opposite side, as shown in dotted lines in Fig. l, so as to enable another board or plank to be easily placed upon the frame between the fixed guidebar and the said spring p1essure-bar,whcn the operation as above described is performed.

It will be seen that by the use oi' the yielding spring pressure-bar boards or planks having knotty edges can be fed through the rollers without binding, and when itis desired to feed boards or planks of a greater width to the planing-machine, the pressure-bar and the cam luay be moved sidewise in the rectangular apertures in the crossbars and firmly held in place by means ofthe nutted bolts Q and C', but retain their relative positions to each other.

Having thus described my invention, I claim and desire to secure hy Letters Patent of the United Statesl. The combination, in a guide for feeders lorplaning-1nachines, ofthe fixed guidebar, a pivoted yielding spring pressure-bar having a l'rictiolrroller at its free end, a cam adapted to bear with its free end against said spring pressure-bar, a lever, and a pitman connecting said cam with said lever, substantially as shown and described.

2. The combination of thc xed guide-bar, the pivoted spring pressure-bar carrying a friction-roller at its free end, a cam adapted to bear against said spring pressurebar and to be removed therefrom, and a lever connected with said cam and adapted to operate the saine, substantially as and for the purpose shown and set forth.

3. The combination of the fixed guide-bar, a spring pressurebar carrying a friction-roller at its free end, a spring connecting said pressure-bar with the frame of the machine,a spring actuated cam adapted to lock the springpressure-bar against the stuff to be fed through the machine, a levcr,andapitman connecting said cam with said lever, substantially as shown and described.

4. The combination ofa frame having a fixed longitudinal guidebar and longitudinally-slotted cross-bars, an adjustable spring pressurebar having its bearing in one of the slotted crossbars, and an adjustable spring-actuated cam adapted to be adjusted in unison with the spring pressurebar and adapted to lock the friction-roller at the free end of said spring pressurebar against the stuif to be fed through the machine, substantially as set forth.

In testimony thatI claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

ANDREW RAMSTAD.

Witnesses:

L. MLLER PETERSON, A. G. Linsen. 

